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CN-117475734-B - Display module and display device

CN117475734BCN 117475734 BCN117475734 BCN 117475734BCN-117475734-B

Abstract

The application provides a display module and a display device, wherein a display panel of the display module comprises a first plane area, a bending area, a second plane area and a backboard, wherein the first plane area comprises a display area and a non-display area surrounding the display area, the bending area is positioned at the end parts of the first plane area and the second plane area, the second plane area is bent to the back side of the display panel through the bending area, the backboard is positioned in a opposition space between the first plane area and the second plane area and comprises a first backboard and a second backboard which are arranged in a disconnected mode, and the first backboard is arranged in the first plane area. The first ink pattern is arranged on one side, facing the bending area, of the first backboard, and is far away from the display panel, and the first ink pattern is located in the non-display area, so that on one hand, the phenomenon that metal wires on the back of the display panel penetrate through the backboard to affect equipment to grasp the lower edge of the first backboard can be avoided, and on the other hand, black ink can be obviously compared with overflowed glue, and the edge grasping accuracy is improved.

Inventors

  • YANG ZHENYU

Assignees

  • 武汉华星光电半导体显示技术有限公司

Dates

Publication Date
20260512
Application Date
20230328

Claims (8)

  1. 1. A display module, comprising: The display panel comprises a first plane area, a bending area and a second plane area, wherein the first plane area comprises a display area and a non-display area surrounding the display area, the bending area is positioned at the end parts of the first plane area and the second plane area, and the second plane area is bent to the back side of the display panel through the bending area; the backboard is positioned in a space opposite to the first plane area and the second plane area and comprises a first backboard and a second backboard which are arranged in a disconnected mode, wherein the first backboard is arranged in the first plane area, and the second backboard is arranged in the second plane area; The first backboard faces the bending area, a first ink pattern is arranged on one side, away from the display panel, of the first backboard, and the first ink pattern is located in the non-display area; The display module further comprises a cover plate positioned on the light emitting side of the display panel, a second ink pattern is arranged on the periphery of the cover plate, facing one side of the display panel, of the cover plate, the second ink pattern is aligned with the non-display area of the first plane area, the outer side edge of the first ink pattern is flush with the edge of the first back plate, the projection of the first ink pattern on the second ink pattern falls into the second ink pattern, and the inner side edge of the projection of the first ink pattern on the second ink pattern is more than 0.2mm away from the nearest inner side edge of the second ink pattern.
  2. 2. The display module of claim 1, wherein an outer edge of the second ink pattern is flush with an edge of the cover plate, and an inner edge of the second ink pattern is more than 0.25mm from an edge of the display area.
  3. 3. The display module of claim 1, wherein the display module includes a support layer on a side of the first back plate remote from the display panel.
  4. 4. A display module according to claim 3, wherein the support layer comprises a support functional layer and auxiliary adhesive layers on both sides of the support functional layer.
  5. 5. A display module according to claim 3, wherein the display module comprises a stiffening layer on a side of the support layer remote from the display panel.
  6. 6. The display module of claim 5, wherein the display module includes an adhesive layer between the stiffening layer and the second back plate.
  7. 7. The display module of claim 1, wherein the display module includes a polarizer between the cover plate and the display panel.
  8. 8. A display device comprising the display module of any one of claims 1 to 7.

Description

Display module and display device Technical Field The present application relates to the field of display technologies, and in particular, to a display module and a display device. Background As flexible display technology has matured, flexible display devices (e.g., folding cell phones, folding tablets, or folding computers, etc.) will be a major trend in the future. In order to protect and support the display panel, a segmented backboard is attached after the glass is stripped by laser, and the lower edge of the first backboard is grabbed by a CCD (image sensor) to be aligned with an alignment mark on the display panel, so that the attachment precision of the backboard is detected. However, since the substrate of the back plate is usually Polyimide (PI) or polyethylene terephthalate (Polyethylene terephthalate, PET), the metal traces on the back of the display panel can be seen through the back plate under a microscope with high transmittance. In addition, the base material and the adhesive material of the back plate are usually cut together, and are attached by adopting a roller, and after the attachment is completed, the lower end of the first back plate often has obvious adhesive overflow. Both the problems can cause false grabbing and out-of-specification alarming of equipment when detecting the attaching precision of the backboard, and the attaching efficiency of the production line is reduced. In summary, the application provides a display module and a display device to solve the problems of false grabbing and overdriving alarm existing in the process of detecting the attaching precision of a back plate of the conventional flexible display module. Disclosure of Invention The embodiment of the application provides a display module and a display device, which can solve the problems of false grabbing and out-of-specification alarming existing in the process of detecting the attachment precision of a backboard by a flexible display module from the source. The embodiment of the application provides a display module, which comprises The display panel comprises a first plane area, a bending area and a second plane area, wherein the first plane area comprises a display area and a non-display area surrounding the display area, the bending area is positioned at the end parts of the first plane area and the second plane area, and the second plane area is bent to the back side of the display panel through the bending area; the backboard is positioned in a space opposite to the first plane area and the second plane area and comprises a first backboard and a second backboard which are arranged in a disconnected mode, wherein the first backboard is arranged in the first plane area, and the second backboard is arranged in the second plane area; The first backboard faces the bending area, a first ink pattern is arranged on one side, away from the display panel, of the first backboard, and the first ink pattern is located in the non-display area. According to an embodiment of the application, the display module comprises a cover plate located at the light emitting side of the display panel, wherein a second ink pattern is arranged around the periphery of the cover plate facing to one side of the display panel, and the second ink pattern is aligned with the non-display area of the first plane area. According to an embodiment of the application, the outer edge of the second ink pattern is flush with the edge of the cover plate, and the inner edge of the second ink is more than 0.25mm from the edge of the display area. According to an embodiment of the present application, an outer edge of the first ink pattern is flush with an edge of the first back plate, and an inner edge of a projection of the first ink pattern onto the second ink pattern is more than 0.2mm from an inner edge of the second ink pattern closest. According to an embodiment of the application, the display module includes a supporting layer located at a side of the first back plate away from the display panel. According to an embodiment of the present application, the supporting layer includes a supporting functional layer and auxiliary adhesive layers located at both sides of the supporting functional layer. According to an embodiment of the application, the display module includes a reinforcing layer located at a side of the supporting layer away from the display panel. According to an embodiment of the application, the display module comprises an adhesive layer between the stiffening layer and the second back plate. According to an embodiment of the application, the display module includes a polarizer located between the cover plate and the display panel. A display device comprising a display module according to any of the above embodiments. The display module and the display device have the beneficial effects that the display panel of the display module comprises a first plane area, a bending area, a second plane area and a backboard, wherein the fir